Re: Race condition in InvalidateObsoleteReplicationSlots()

Andres Freund <andres@anarazel.de>

From: Andres Freund <andres@anarazel.de>

To: Álvaro Herrera <alvherre@alvh.no-ip.org>

Cc: pgsql-hackers@postgresql.org, Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>, Fujii Masao <fujii@postgresql.org>

Date: 2021-06-11T20:38:32Z

Lists: pgsql-hackers

On 2021-06-11 15:52:21 -0400, Álvaro Herrera wrote:
> On 2021-Apr-07, Andres Freund wrote:
> 
> > After this I don't see a reason to have SAB_Inquire - as far as I can
> > tell it's practically impossible to use without race conditions? Except
> > for raising an error - which is "builtin"...
> 
> Pushed 0002.
> 
> Thanks!

Thank you for your work on this!

Commits

Add test case for obsoleting slot with active walsender, take 2
- 24043c27b46f 14.0 landed
Add test case for obsoleting slot with active walsender
- 09126984a263 14.0 landed
Return ReplicationSlotAcquire API to its original form
- 1632ea43682f 14.0 landed
Fix race condition in invalidating obsolete replication slots
- 96540f80f833 14.0 landed
- 218b101008b5 13.4 landed
Fix issues in invalidation of obsolete replication slots.
- f9e9704f09da 14.0 cited
Allow users to limit storage reserved by replication slots
- c6550776394e 13.0 cited